Home / 32,961.76-45,493.20-21,028.80

Finding the Fourth Proportional to 32,961.76, 45,493.20 and 21,028.80

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Solution

The fourth proportional to 32,961.76, 45,493.20 and 21,028.80 is: 29,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,961.76 : 45,493.20 = 21,028.80 : x
  2. Step 2: Convert to fraction form
    32,961.76/45,493.20 = 21,028.80/x
  3. Step 3: Cross multiply
    32,961.76x = 45,493.20 × 21,028.80
  4. Step 4: Simplify right side
    32,961.76x = 956,667,404.16
  5. Step 5: Solve for x
    x = 956,667,404.16/32,961.76
  6. Step 6: Final answer
    x = 29,023.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.